Bar-spacing device



W. E. WHITE. BAR SPACING DEVICE. APPLIC ATION FILED APR. 12, I920.

Patented July 11, 1922.

"I SIT F A T E rice.

WILLIAM E. WHITE, OF CHICAGO, ILLINOIS.

BAR-SPACING DEVICE.

wearer.

Specification of Letters Patent.

Patented July 11, 1922.

Application filed April 12, 1920. Serial No. 373,339.

improvement on the construction shown in' my co-pending application Serial No. 370,453, filed April 1, 1920.

An object in the construction of the device here illustrated is to provide a simple and economical spacing element adapted to be constructed from wire, the separate parts being welded in order to join the same.

The idea sought to be protected herein is, like that of the construction shown in my companion application, heretofore referred to, that of utilizing a single continuous length of wire or wire rod and securing chairs or supports thereto at intervals by welding. The chairs are also composed of wire bent into generally V-shape, the V being inverted when the device is in operative position. A distinction in this construction over that shown in the application referred to is in that the longitudinal wire is positively supported and the weight thereof, together with the weight of the bar supported thereby, is not dependent upon the strength of the weld.

The invention will be more readily understood by reference to the accompanying drawing wherein:

Fig. 1 is a plan view of a section of a spacing device constructed in accordance with my invention;

Fig. 2 is a side View;

Fig. 3 is an end view thereof;

Fig. 4. is a perspective view of a modified form;

Fig. 5 is an end view thereof; and

Fig. 6 is a side elevation of said modified form.

In the drawings, and referring to the construction shown in Figs. 1 to 3, it will be seen that I provide a continuous length of wire 10 which may be of suitable strength and stiffness to meet the requirements of specific cases. At intervals in. the length of wire I provide chairs, the spacing being determined by the spacing of the reinforcing bars to be supported thereby. These chairs comprise two oppositely diagonally proyecting legs 11, 12, joined by an intermediate angularly disposed member 13, the wire being bent in such manner that the connecting wire 13 is located beneath the strand 10, of wire, whereas the bends 14: at the upper ends of the legs overlie the strand, the connecting wire 13 being welded to the strand 10 at their intersection. A chair is formed which, in plan view, outlines a Z, the connecting member extending crosswise of the strand. In this construction the weight of the strand and a bar which may be mounted on the strand or between the legs is directly carried by the cross member 13.

As a means for securing a reinforcing bar in posltion I may provide a short length of annealed wire 15, and an intermediate point 16 of which is shaped to conform to the connecting member 13 and is welded to the lower edge thereof. The terminal portions of the wire 15 will lie on opposite sides of the strand and may easily be bent upward and twisted around a reinforcing bar.

In the construction shown in Figs. 1, 5 and 6 the strand 17 is the same as that described the chair being similar to that shown in my application heretofore referred to in that it is composed of a section of wire bent to form a loop, the loop being bent transversely to form legs 18, 18, and 19, 19, the latter legs being joined by a cross member 20. The distinction over the construction of my prior application is in that I provide a seat or pocket 21 at the bend in the loop, the seat accommodating the strand 17 which is welded thereto. Thus the weight of the supported parts is carried directly instead of through the medium of the weld as in the preceding case. In this construction the sharp bends 22, at the upper ends of the legs, may project considerably above the upper edge of the strand wire, thus forming a more distinctly outlined pocket for the reception of the reinforcing rod.

A tie wire, such as indicated at 23, is secured by welding to the chair and may be bent around the reinforcing rod holding the same in position. Obviously other modifications than those here shown may be made without departure from the spirit of my invention.

I claim:

1. A spacing device, comprising in combination a continuous length of Wire, and

spaced chairs Welded to the wire atintervals, said chairs being composed of a length of Wire bent into inverted V-shape and provided with a pocket at the apex of the V, said pocket being located beneath said length of wire and serving to support the wire in dependently of the weld, substantially as described.

2. In a bar spacer, the combination of a single continuous length of wire, and wire chairs welded thereto at intervals, said chairs being composed of a portion lying alongside of said length of wire and beneath the same, and two legs joined to said portion and one thereof bent over the Wire," substantially as described.

3. In a bar spacer, the combination of a single continuous length of wire and chairs composed of two oppositely diagonally projecting legs, and a horizontal member integral with the legs, said member lying beneath the wire and said legs being bent over the wire, substantially as described.

4. A spacingsdevice comprising in combination a continuous length of Wire, and supporting chairs also composed of Wire and bent to provide a pair of oppositely projecting diagonal legs arranged in planes transverse to said length of wire, said legs being spaced apart longitudinally of the length of Wire and joined by a horizontal member, the length of wire extending over said horizontal part and beneath the upper ends of said legs.

5. In a spacing device, the combination of a continuous length of wire, and chairs also composed of wire and bent to provide a V-shaped structure as viewed from. a point at an end of said length of Wire, the length of wire cooperating with the chair at the apex of the V and being welded thereto, a portion of said chair being bent over and another wire.

Signed at Chicago, Illinois, this 9th day of April, 1920.

WILLIAM E WHITE.

portion lying under said length of 

